Ncert Exercises & Solutions

Given that the average duplication time of E. coli is 20 minutes, how much time will two E. coli cells take to become 32 cells?

1 hour -20 minutes

These are the 4 subsequent cell divisions to produce 16 cells and each division takes = 20 min

Total time =20 x 4= 80 minutes or 1 hr 20 minutes

So, 1 cell produces 16 cells in 1 hour 20 minutes and 2 cells produces 32 cells in 1 hour 20 minutes.